2006•Turang feiliaoRequires access
Study on relationship of soil nutrients and various particlesin fluvo-aquic soils on the Yellow River flood plain,north China
Qin Liu, Zhen Lin
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Abstract
Based on the data of fluvo-aquic soils published by provincial government,this paper analyzed the relations of nutrients with particles using methods of correlation.It was found out that the contents of nutrients were in proportional to the contents of particles less than 0.01 mm,inversely proportional to the contents of sand.Some models were established using the method of stepwise regression.These models showed,the level of organic materials was mainly affected by the content of sand and fine clay particles,total nitrogen by fine silt,total phosphorus by sand and coarse silt,rapidly available phosphorus by fine clay,and rapidly available potassium by fine silt,respectively.